From 4aedfb286976561196d9d407eb63a0d421f0101e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Boris=20Bab=C4=8D=C3=A1k?= <boris.babcak@kosickaakademia.sk>
Date: Fri, 16 Feb 2024 11:30:00 +0100
Subject: [PATCH] added method to print temperature in city
---
Country.json | 2 +-
.../java/sk/kasv/babcak/worldx/APIcalls.java | 60 +++++++++++++++++++
.../java/sk/kasv/babcak/worldx/WorldApp.java | 11 +++-
.../sk/kasv/babcak/worldx/WriterJSON.java | 17 ++++--
4 files changed, 83 insertions(+), 7 deletions(-)
create mode 100644 src/main/java/sk/kasv/babcak/worldx/APIcalls.java
diff --git a/Country.json b/Country.json
index 1cb0385..e5819bf 100644
--- a/Country.json
+++ b/Country.json
@@ -1 +1 @@
-{"date":"2024-02-14","code3":"SVK","code2":"SK","capital":"Bratislava","cities":["Bratislava",448292,"Košice",241874,"Prešov",93977,"Poprad",51922,"Bardejov",27000,"Namestovo",8000,"Nitra",77000,"Trnava",92000],"name":"Slovakia"}
\ No newline at end of file
+{"date":"2024-02-16","code3":"SVK","code2":"SK","capital":"Bratislava","cities":[{"name":"Bratislava","population":448292},{"name":"Košice","population":241874},{"name":"Prešov","population":93977},{"name":"Poprad","population":51922},{"name":"Bardejov","population":27000},{"name":"Namestovo","population":8000},{"name":"Nitra","population":77000},{"name":"Trnava","population":92000}],"name":"Slovakia"}
\ No newline at end of file
diff --git a/src/main/java/sk/kasv/babcak/worldx/APIcalls.java b/src/main/java/sk/kasv/babcak/worldx/APIcalls.java
new file mode 100644
index 0000000..fc1ee5c
--- /dev/null
+++ b/src/main/java/sk/kasv/babcak/worldx/APIcalls.java
@@ -0,0 +1,60 @@
+package sk.kasv.babcak.worldx;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+
+public class APIcalls {
+
+ private static final String API_KEY = "b1fd73144d85323925c1b2c6237d1dfc";
+
+ public double getTemperature(String name, String code){
+ try {
+ URL url = new URL("http://api.openweathermap.org/data/2.5/weather?q=" + name + "&appid=" + API_KEY);
+ HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+ conn.setRequestMethod("GET");
+ conn.setConnectTimeout(5000);
+ conn.setReadTimeout(5000);
+
+ int status = conn.getResponseCode();
+ if (status == 200) {
+ try (BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()))) {
+ StringBuilder content = new StringBuilder();
+ String inputLine;
+ while ((inputLine = in.readLine()) != null) {
+ content.append(inputLine);
+ }
+
+ String jsonResponse = content.toString();
+ double temperature = extractTemperature(jsonResponse);
+ System.out.println("Temperature in " + name + ": " + temperature + " °C");
+ return temperature;
+ }
+ } else {
+ System.out.println("Error: Unable to retrieve temperature. Status code: " + status);
+ }
+ conn.disconnect();
+ } catch (IOException e) {
+ System.err.println("Error: Failed to fetch temperature data: " + e.getMessage());
+ }
+ return 0;
+ }
+
+ private double extractTemperature(String jsonResponse) {
+ try {
+ JSONObject jsonObject = new JSONObject(jsonResponse);
+ JSONObject mainObject = jsonObject.getJSONObject("main");
+ double temperatureKelvin = mainObject.getDouble("temp");
+ return temperatureKelvin - 273.15;
+ } catch (JSONException e) {
+ System.err.println("Error parsing temperature: " + e.getMessage());
+ return Double.NaN;
+ }
+ }
+}
\ No newline at end of file
diff --git a/src/main/java/sk/kasv/babcak/worldx/WorldApp.java b/src/main/java/sk/kasv/babcak/worldx/WorldApp.java
index c28bf29..d3a210a 100644
--- a/src/main/java/sk/kasv/babcak/worldx/WorldApp.java
+++ b/src/main/java/sk/kasv/babcak/worldx/WorldApp.java
@@ -5,6 +5,7 @@ import java.sql.SQLException;
public class WorldApp {
public static void main(String[] args) throws SQLException {
+ try{
DataBase db = new DataBase();
WriterJSON writerJSON = new WriterJSON();
Country country = db.getCountry("SVK");
@@ -14,5 +15,11 @@ public class WorldApp {
writerJSON.createJSONdocument("Country.json", country);
country.printCity();
- }
-}
\ No newline at end of file
+
+ APIcalls call = new APIcalls();
+ call.getTemperature("Turkey", "");
+ } catch (SQLException e) {
+ e.printStackTrace();
+ }
+ }
+ }
\ No newline at end of file
diff --git a/src/main/java/sk/kasv/babcak/worldx/WriterJSON.java b/src/main/java/sk/kasv/babcak/worldx/WriterJSON.java
index cd25ab4..37ea78e 100644
--- a/src/main/java/sk/kasv/babcak/worldx/WriterJSON.java
+++ b/src/main/java/sk/kasv/babcak/worldx/WriterJSON.java
@@ -23,18 +23,27 @@ public class WriterJSON {
private static JSONObject createJsonStructure(Country country) {
JSONObject object = new JSONObject();
+ APIcalls call = new APIcalls();
object.put("name", country.getName());
object.put("code2", country.getCode2());
object.put("code3", country.getCode3());
object.put("capital", country.getCapital());
+
JSONArray jsonArray = new JSONArray();
+ for (City city : country.getList()) {
+ JSONObject cityObject = new JSONObject();
+ cityObject.put("name", city.getName());
+ cityObject.put("population", city.getPopulation());
+
+ /*
+ double temperature = call.getTemperature(city.getName(), country.getCode2());
+ cityObject.put("temperature", temperature);
+ */
- for(City city: country.getList()) {
- jsonArray.put(city.getName());
- jsonArray.put(city.getPopulation());
+ jsonArray.put(cityObject);
}
- object.put("cities",jsonArray);
+ object.put("cities", jsonArray);
object.put("date", Util.getDate());
return object;
--
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